CN107542424A - The cased cementing system of robot assisted and method are drawn in a kind of horizontal well mud driving - Google Patents
The cased cementing system of robot assisted and method are drawn in a kind of horizontal well mud driving Download PDFInfo
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- CN107542424A CN107542424A CN201710873115.5A CN201710873115A CN107542424A CN 107542424 A CN107542424 A CN 107542424A CN 201710873115 A CN201710873115 A CN 201710873115A CN 107542424 A CN107542424 A CN 107542424A
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Abstract
The invention discloses a kind of horizontal well mud to drive the traction cased cementing system of robot assisted, and it includes sleeve pipe（4）, the ground signal monitoring system that is arranged on ground（1）, mud veclamation system（2）System is suppressed with mud displacement（3）, sleeve pipe（4）Front end at be sequentially connected with cementing switch（13）, mud traction robot（5）, short sleeve post（6）And guide shoe（8）, sleeve pipe（4）Front portion be provided with well cementation centralizer（12）, ground signal monitoring system（1）System is suppressed with mud displacement（3）Connection.The beneficial effects of the invention are as follows：Can fundamentally solve tripping in problem of the horizontal down-hole casing in bending section and horizontal segment, horizontal well casing pipe is set to assign precalculated position, and reduce the possibility of sleeve pipe tripping in cutting ferrule and damage, improve well cementation efficiency and quality, effectively reduce well cementation and completion time, operating efficiency is improved, substantially reduces operating cost.
Description
Technical field
The present invention relates to oil gas WIH horizontal well cementing technology field, particularly a kind of horizontal well mud driving traction machine
People aids in cased cementing system and method.
Background technology
Since horizontal well and extended reach well come out, horizontal well, extended reach well especially extended horizontal well how are ensured
The safe tripping in of sleeve pipe, it is always the topic of oil gas well cementing operation area research.The tripping in set in oil well horizontal cementing operation
The process of pipe is typically to rely on sleeve pipe self gravitation, the cased the biggest problem of horizontal well be sleeve pipe in the case where net horizontal section is difficult to extremely
Precalculated position.Resistance during sleeve pipe tripping in can be divided mainly into two parts, one is local resistance when passing through sharp turn, by well
Eye conditional decision, major influence factors are the maximum rate of over-all angle changes of the well；The second is the frictional resistance of sleeve pipe and the borehole wall, by suitable
Determined in the sleeve pipe gravity and sleeve pipe of horizontal displacement length and the coefficient of friction of the borehole wall.Sleeve pipe can smooth tripping in, depending on set
Whether pipe is more than above-mentioned two parts resistance from gravity.With the increase of hole angle, just it is close to after sleeve pipe tripping in horizontal well tilting section
The borehole wall below well, into horizontal segment after just lie low on the lower borehole wall, cause motive force to reduce, while stratum is rubbed sleeve pipe
Resistance increase, cause sleeve pipe tripping in difficult.
Conventional Casing running technology mainly reduces cased difficulty by reducing frictional resistance, and such a method could not be fundamentally
Solves setting of casing problem, and with the increase of well depth, such a method can meet with the depth of setting limit, under deep-well or ultra-deep casing
Enter problem has turned into the major reason for the solid completion technique development for restricting such well, and particularly deep-well or ultra-deep horizontal well is generally deposited
In the situation that sleeve pipe tripping in is difficult, to reduce the frictional resistance during sleeve pipe tripping in, domestic and international multidigit scholar and group have carried out phase
The research setting of casing technique of pass：Float Casing running technology, " above putting punching " Casing running technology, centralizer installation and bunch tube optimization
Technology, rotation Casing running technology, mud property optimisation technique etc., but be all only to enter from reduction sleeve pipe with borehole wall frictional resistance mode
Hand, in summary, it can be found that these conventional setting of casing techniques are not under one direct axial thrust force auxiliary of offer
Casing methods are started with.
Chinese Patent Application No. discloses turbine driven horizontal well casing pipe tractor in being 201420366574.6, passes through
Conscientiously study carefully and contrast, there are following 4 points of summaries：1. though be horizontal well casing pipe tractor, do not provide axial tension directly
Pull sleeve pipe：The patent is to drive drill bit radial rotary to cut reaming by turbine, only by reducing rubbing for sleeve pipe and the borehole wall
Resistance, have no that it provides direct axial force and carrys out drag spring thimble；2. bring drill bit unduly high rotating speed due to the leak-off of drilling fluid, make
Into drill bit provide radial load is unstable and now sleeve pipe tripping in inertia force collective effect, cause to extrude, damage sleeve pipe；3.PDC
Drill bit cost is high：Drill bit cut reaming when can run into the rock of different lithology, if drill bit because running into compared with hard interbedded layer, can damage
Drill bit, cause cost of idleness, and prevent work from being normally carried out；4. the tractor can not control the size of speed, and under sleeve pipe
It is unsuitable too high to enter horizontal segment process running speed, is advanced at utmost speed when the now tractor crosses sleeve pipe, can cause sleeve pipe extruding by
Damage and shaft lining breakage；In summary, in application there is larger problem in the turbine driven horizontal well casing pipe tractor.
The content of the invention
The present invention fundamentally solves tripping in problem of the horizontal down-hole casing in bending section and horizontal segment, makes horizontal well casing pipe
Assign precalculated position, there is provided a kind of possibility for reducing sleeve pipe tripping in cutting ferrule and damage, improve well cementation efficiency and quality, effectively drop
Low well cementation and completion time, the horizontal well mud driving traction robot assisted for improving operating efficiency, greatly reducing operating cost
Cased cementing system and method.
The purpose of the present invention is achieved through the following technical solutions：Under a kind of horizontal well mud driving traction robot assisted
The cementing system of sleeve pipe, it includes sleeve pipe, the ground signal monitoring system being arranged on ground, mud veclamation system and mud row
Amount suppresses system, and cementing switch, mud traction robot, short sleeve post have been sequentially connected with the front end of described sleeve pipe and has been drawn
Footwear, the front portion of sleeve pipe are provided with well cementation centralizer, and well cementation centralizer is located at cementing switch rear end, list is provided with short sleeve post
To throttling valve group, cementing switch is connected with ground signal monitoring system, and ground signal monitoring system is suppressed with mud displacement is
System connection.
Displacement transducer, velocity sensor and mud robot are installed in described mud traction robot wirelessly to open
Dynamic switch.
Described displacement sensing, velocity sensor, mud robot wireless startup switch and cementing switch with ground
Face signal monitoring system is attached by wireless signal.
The cementing method of the described horizontal well mud driving traction cased cementing system of robot assisted, it include with
Lower step：
S1, before tripping in sleeve pipe, to horizontal well carry out overall data collection, analyze hole condition according to the data of collection；
S2, anterior sequentially installation cementing switch, mud traction robot, short sleeve post and guide shoe in sleeve pipe, in short sleeve
Installation one-way throttle valve group in post；
S3, mud is drawn robot by ground, displacement transducer, velocity sensor, mud robot wireless startup switch are entered
Row Initialize installation, then by sleeve pipe, short sleeve post, guide shoe, well cementation centralizer, cementing switch together tripping in horizontal well hang down
In straight section；The slurry outlet that mud displacement is suppressed to system connects through the stock inlet of mud line A and sleeve pipe；In mud veclamation system
Mud line B is connected at the overfall mouth of system, and mud line B is inserted into the annular space of sleeve pipe and horizontal well vertical section；
S4, when sleeve pipe is hampered in the bending section or horizontal segment for being lowered into horizontal well, pass through ground signal monitoring system open mud
Slurry robot wireless startup switch and mud displacement suppress system, and now mud traction robot is opened, and surface mud discharge capacity
System discharge mud is suppressed through in mud line A sleeve pipes, high-pressure slurry is supplied to mud traction robot axial thrust force
Its advance, simultaneous displacement sensor and velocity sensor real-time delivery speed and displacement information is set to give ground signal monitoring system,
Ground signal monitoring system is received after speed and displacement information by controlling surface mud discharge capacity to suppress the mud displacement of system
To control the hauling speed of mud traction robot, sleeve pipe is set to be lowered into horizontal segment with Reasonable Speed；Mud driving mud traction
After robot, the mud for the row of returning flows out through one-way throttle valve group, is then sequentially back to mud veclamation through annular space, mud line B
Collected in system；
S5, after sleeve pipe is lowered into design well depth, mud robot wireless startup switch is closed by ground signal control system,
Mud traction robot is out of service；
S6, start cementing well operation, control cementing switch is opened, and injects cement mortar into sleeve pipe, and cement mortar is from water filling
Flowed out in mud switch, circulating mud, cement mortar is waited in horizontal well to be coagulated, and well cementation is realized after cementing terminates.
In described step S4, when sleeve pipe needs low speed to draw, reduce the discharge capacity that mud displacement suppresses system；Work as sleeve pipe
When needing to accelerate, mud displacement is increased；When sleeve pipe is needed compared with large traction, suppressing system by mud displacement increases mud pressure
Power, when sleeve pipe needs to reduce tractive force, system is suppressed by mud displacement and reduces mud pressure.
In described step S5, when mud traction robot it is out of service after, by mud draw robot with sleeve pipe together
Stay in underground, it is not necessary to rise, and with sleeve pipe cementing, so as to which sealing is in shaft bottom.
The present invention has advantages below：The present invention can fundamentally solve horizontal down-hole casing in bending section and horizontal segment
Tripping in problem, horizontal well casing pipe is assigned precalculated position, and reduce the possibility of sleeve pipe tripping in cutting ferrule and damage, improve solid
Well efficiency and quality, well cementation and completion time are effectively reduced, improve operating efficiency, substantially reduce operating cost.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the flow chart of cementing method of the present invention；
In figure, 1- ground signal monitoring systems, 2- mud veclamation systems, 3- mud displacements suppress system, 4- sleeve pipes, and 5- mud is led
Draw robot, 6- short sleeve posts, 7- one-way throttle valve groups, 8- guide shoes, 9- displacement transducers, 10- velocity sensors, 11- mud
Robot wireless startup switch, 12- well cementation centralizers, 13- cementings switch, 14- mud lines A, 15- mud line B, 16-
Horizontal well.
Embodiment
The present invention will be further described below in conjunction with the accompanying drawings, and protection scope of the present invention is not limited to as described below：
As shown in Figure 1 and 2, a kind of horizontal well mud driving traction cased cementing system of robot assisted, it include sleeve pipe 4,
Ground signal monitoring system 1, mud veclamation system 2 and the mud displacement being arranged on ground suppress system 3, described sleeve pipe 4
Cementing switch 13, mud traction robot 5, short sleeve post 6 and guide shoe 8, the anterior setting of sleeve pipe 4 have been sequentially connected with front end
There is well cementation centralizer 12, well cementation centralizer 12 is located at cementing and switchs 13 rear ends, and one-way throttle valve group is provided with short sleeve post 6
7, cementing switch 13 is connected with ground signal monitoring system 1, and ground signal monitoring system 1 is suppressed system 3 with mud displacement and connected
Connect.
Be provided with described mud traction robot 5 displacement transducer 9, velocity sensor 10 and mud robot without
Line starting switch 11.
Described displacement transducer 9, velocity sensor 10, mud robot wireless startup switch 11 and cementing switch
13 are attached with ground signal monitoring system 1 by wireless signal.
The cementing method of the described horizontal well mud driving traction cased cementing system of robot assisted, its feature exist
In：It comprises the following steps：
S1, before tripping in sleeve pipe 4, to horizontal well 16 carry out overall data collection, analyze hole condition according to the data of collection；
S2, anterior sequentially installation cementing switch 13, mud traction robot 5, short sleeve post 6 and guide shoe 8 in sleeve pipe 4,
Installation one-way throttle valve group 7 in short sleeve post 6；
S3, mud traction robot 5, displacement transducer 9, velocity sensor 10, mud robot are wirelessly started on ground and opened
Close 11 and carry out Initialize installation, then by sleeve pipe 4, short sleeve post 6, guide shoe 8, well cementation centralizer 12, cementing switch 13 together
In the vertical section of tripping in horizontal well 16；Mud displacement is suppressed into the slurry outlet of system 3 entering through mud line A14 and sleeve pipe 4
Starch mouth connection；Mud line B15 is connected at the overfall mouth of mud veclamation system 2, and mud line B15 is inserted into sleeve pipe 4
With in the annular space of the vertical section of horizontal well 16；
S4, when sleeve pipe 4 is hampered in the bending section or horizontal segment for being lowered into horizontal well 16, beaten by ground signal monitoring system 1
Open mud robot wireless startup switch 11 and mud displacement suppresses system 3, now mud traction robot 5 is opened, and ground
Mud displacement suppresses system 3 and discharges mud through in mud line A14 sleeve pipes 4, high-pressure slurry is supplied to mud to draw machine
The axial thrust force of people 5 makes its advance, therefore in the case where not needing cable to provide power, machine is supplied to using high-pressure slurry
People's axial thrust force pulls sleeve pipe, moves horizontally so as to pull sleeve pipe；Simultaneous displacement sensor 9 and velocity sensor 10 are real-time
Transmission speed and displacement information are to ground signal monitoring system 1, after ground signal monitoring system 1 receives speed and displacement information
Control mud to draw the hauling speed of robot 5 by controlling surface mud discharge capacity to suppress the mud displacement of system 3, make sleeve pipe
4 are lowered into horizontal segment with Reasonable Speed；After mud driving mud traction robot 5, the mud for the row of returning flows through one-way throttle valve group 7
Go out, be then sequentially back in mud veclamation system 2 and collect through annular space, mud line B15；
S5, after sleeve pipe 4 is lowered into design well depth, mud robot closed by ground signal control system 1 wirelessly started and open
11 are closed, mud traction robot 5 is out of service；In described step S5, after mud traction robot 5 is out of service, by mud
Slurry traction robot 5 is together stayed in underground with sleeve pipe 4, it is not necessary to rises, and with sleeve pipe cementing, so as to which sealing is in shaft bottom.
, start cementing well operation, control cementing switch 13 is opened, and injects cement mortar into sleeve pipe 4, cement mortar from
Flowed out in cementing switch 13, circulating mud, cement mortar is waited in horizontal well 16 to coagulate, and is realized after cementing terminates solid
Well.
In described step S4, when sleeve pipe 4 needs low speed to draw, reduce the discharge capacity that mud displacement suppresses system 3；Work as set
When pipe 4 needs to accelerate, mud displacement is increased；When sleeve pipe 4 is needed compared with large traction, suppressing system 3 by mud displacement increases
Mud pressure, when sleeve pipe 4 needs to reduce tractive force, system 3 is suppressed by mud displacement and reduces mud pressure.
The system can fundamentally solve tripping in problem of the horizontal down-hole casing in bending section and horizontal segment, make horizontal well
Sleeve pipe assigns precalculated position, and reduces the possibility of sleeve pipe tripping in cutting ferrule and damage, improves well cementation efficiency and quality, effectively drop
Low well cementation and completion time, operating efficiency is improved, substantially reduces operating cost.
Claims (6)
- A kind of 1. horizontal well mud driving traction cased cementing system of robot assisted, it is characterised in that：It includes sleeve pipe （4）, the ground signal monitoring system that is arranged on ground（1）, mud veclamation system（2）System is suppressed with mud displacement（3）, institute State sleeve pipe（4）Front end at be sequentially connected with cementing switch（13）, mud traction robot（5）, short sleeve post（6）And guide shoe （8）, sleeve pipe（4）Front portion be provided with well cementation centralizer（12）, centralizer of cementing the well（12）Switched positioned at cementing（13）Rear end, it is short Casing string（6）Inside it is provided with one-way throttle valve group（7）, cementing switch（13）With ground signal monitoring system（1）Connection, ground Signal monitoring system（1）System is suppressed with mud displacement（3）Connection.
- 2. a kind of horizontal well mud driving traction cased cementing system of robot assisted according to claim 1, its It is characterised by：Described mud traction robot（5）On displacement transducer is installed（9）, velocity sensor（10）And mud Robot wireless startup switch（11）.
- 3. a kind of horizontal well mud driving traction cased cementing system of robot assisted according to claim 2, its It is characterised by：Described displacement transducer（9）, velocity sensor（10）, mud robot wireless startup switch（11）And note Cement switchs（13）With ground signal monitoring system（1）It is attached by wireless signal.
- 4. the horizontal well mud driving traction cased well cementation of robot assisted according to any one in claim 1 ~ 3 The cementing method of system, it is characterised in that：It comprises the following steps：S1, in tripping in sleeve pipe（4）Before, to horizontal well（16）Overall data collection is carried out, well is analyzed according to the data of collection Condition；S2, in sleeve pipe（4）Anterior cementing switch is sequentially installed（13）, mud traction robot（5）, short sleeve post（6）With Guide shoe（8）, in short sleeve post（6）Interior installation one-way throttle valve group（7）；S3, on ground mud is drawn into robot（5）, displacement transducer（9）, velocity sensor（10）, mud robot is wireless Starting switch（11）Initialize installation is carried out, then by sleeve pipe（4）, short sleeve post（6）, guide shoe（8）, well cementation centralizer（12）、 Cementing switchs（13）Together tripping in horizontal well（16）Vertical section in；Mud displacement is suppressed into system（3）Slurry outlet warp Mud line A（14）With sleeve pipe（4）Stock inlet connection；In mud veclamation system（2）Overfall mouth at connect mud line B （15）, and by mud line B（15）It is inserted into sleeve pipe（4）With horizontal well（16）In the annular space of vertical section；S4, work as sleeve pipe（4）It is being lowered into horizontal well（16）Bending section or horizontal segment when being hampered, pass through ground signal monitoring system （1）Open mud robot wireless startup switch（11）System is suppressed with mud displacement（3）, now mud traction robot（5） Open, and surface mud discharge capacity suppresses system（3）Mud is discharged through mud line A（14）Sleeve pipe（4）Interior, high-pressure slurry carries Supply mud traction robot（5）Axial thrust force makes its advance, simultaneous displacement sensor（9）And velocity sensor（10）In real time Transmission speed and displacement information give ground signal monitoring system（1）, ground signal monitoring system（1）Receive speed and displacement letter By controlling surface mud discharge capacity to suppress system after breath（3）Mud displacement come control mud draw robot（5）Traction speed Degree, makes sleeve pipe（4）Horizontal segment is lowered into Reasonable Speed；Mud driving mud traction robot（5）Afterwards, the mud for the row of returning is through list To throttling valve group（7）Outflow, then sequentially through annular space, mud line B（15）It is back to mud veclamation system（2）Middle collection；S5, work as sleeve pipe（4）After being lowered into design well depth, pass through ground signal control system（1）Mud robot is closed wirelessly to open Dynamic switch（11）, mud traction robot（5）It is out of service；S6, start cementing well operation, control cementing switch（13）Open, toward sleeve pipe（4）Middle injection cement mortar, cement mortar Switched from cementing（13）Middle outflow, circulating mud, cement mortar is in horizontal well（16）It is middle to wait solidifying, i.e. realization after cementing terminates Well cementation.
- 5. the well cementation side of the horizontal well mud driving traction cased cementing system of robot assisted according to claim 4 Method, it is characterised in that：In described step S4, work as sleeve pipe（4）When needing the low speed to draw, reduce mud displacement and suppress system（3） Discharge capacity；Work as sleeve pipe（4）When needing to accelerate, mud displacement is increased；Work as sleeve pipe（4）When needing compared with large traction, arranged by mud Amount suppresses system（3）Increase mud pressure, work as sleeve pipe（4）When needing to reduce tractive force, system is suppressed by mud displacement（3）Subtract Small mud pressure.
- 6. the well cementation side of the horizontal well mud driving traction cased cementing system of robot assisted according to claim 4 Method, it is characterised in that：In described step S5, when mud draws robot（5）After out of service, mud is drawn into robot （5）With sleeve pipe（4）Together stay in underground, it is not necessary to rise, and with sleeve pipe cementing, so as to which sealing is in shaft bottom.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710873115.5A CN107542424A (en) | 2017-09-25 | 2017-09-25 | The cased cementing system of robot assisted and method are drawn in a kind of horizontal well mud driving |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710873115.5A CN107542424A (en) | 2017-09-25 | 2017-09-25 | The cased cementing system of robot assisted and method are drawn in a kind of horizontal well mud driving |
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| CN107542424A true CN107542424A (en) | 2018-01-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710873115.5A Pending CN107542424A (en) | 2017-09-25 | 2017-09-25 | The cased cementing system of robot assisted and method are drawn in a kind of horizontal well mud driving |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111255376A (en) * | 2020-04-01 | 2020-06-09 | 德州众凯石油科技有限公司 | Extension casing running device of coal bed gas horizontal well |
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| WO2003004823A1 (en) * | 2001-05-25 | 2003-01-16 | Tracto-Technik Gmbh | Cable pull device for pulling in pipes |
| CN2605378Y (en) * | 2003-03-14 | 2004-03-03 | 周警卫 | Hydraulic rigid centralising device for well drilling and well cementation |
| CN1688787A (en) * | 2002-10-01 | 2005-10-26 | 哈利伯顿能源服务公司 | Apparatus and methods for installing casing in a borehole |
| CN104563873A (en) * | 2014-12-11 | 2015-04-29 | 中国石油天然气股份有限公司 | Underground casing power guiding device |
| CN105401914A (en) * | 2015-11-26 | 2016-03-16 | 中国石油天然气集团公司 | Well cementation fluid parameter monitoring device |
| CN105604485A (en) * | 2015-12-31 | 2016-05-25 | 燕山大学 | Axial vibration crawl device |
-
2017
- 2017-09-25 CN CN201710873115.5A patent/CN107542424A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003004823A1 (en) * | 2001-05-25 | 2003-01-16 | Tracto-Technik Gmbh | Cable pull device for pulling in pipes |
| CN1688787A (en) * | 2002-10-01 | 2005-10-26 | 哈利伯顿能源服务公司 | Apparatus and methods for installing casing in a borehole |
| CN2605378Y (en) * | 2003-03-14 | 2004-03-03 | 周警卫 | Hydraulic rigid centralising device for well drilling and well cementation |
| CN104563873A (en) * | 2014-12-11 | 2015-04-29 | 中国石油天然气股份有限公司 | Underground casing power guiding device |
| CN105401914A (en) * | 2015-11-26 | 2016-03-16 | 中国石油天然气集团公司 | Well cementation fluid parameter monitoring device |
| CN105604485A (en) * | 2015-12-31 | 2016-05-25 | 燕山大学 | Axial vibration crawl device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111255376A (en) * | 2020-04-01 | 2020-06-09 | 德州众凯石油科技有限公司 | Extension casing running device of coal bed gas horizontal well |
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Application publication date: 20180105 |